First, get the latest version Daz Studio at daz3d.com its free.
Vic3 work on both programs: Daz Studio and Poser, and they do almost the same thing, so DS is free and Poser dont.
To know how to work with both programs look here a RO for basic tutorials or the Daz site has some good ones.
You need to understand a little about how to load models, conform cloth and propers. At Daz you can get others free stuff too.

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